In depth: Why was a Shanghai zoo worker killed in a bear attack?

From the balcony where wild animal keeper Zhang Jinbin lived, he could see the white and red striped circus rooftop and the Ferris wheel of the Shanghai Wild Animal Park where he worked less than a mile away.

His grandfather would wait on the balcony every afternoon at 6 o'clock to see his car driving the short distance home. But on the evening of Oct. 17, the grandfather didn't see the car. Worried, Zhang's mother, Zhang Xiuhong, rushed to the park entrance.